CS98000
4
DS525PP1
1.
CHARACTERISTICS AND SPECIFICATIONS
1.1
AC Electrical Specifications
1.1.1
ATAPI Interface
CS98000 can interface with ATAPI-type slave loader gluelessly. Figure 1 illustrates a read ATAPI trans-
action and a write ATAPI transaction. PIO mode 4 is implemented for sufficient data transfer rate between
ATAPI device and CS98000.
ATAPI TRANSACTION
Symbol
Description
Min
Typ
Max
Unit
Tasu
Address valid to H_RD
25
30
-
ns
Tdsu
Read data setup time
20
30
-
ns
Tc
Transaction cycle time
70
75
-
ns
Tw
Read or write pulse width
70
75
-
ns
Trdh
Read data hold time
5
15
-
ns
Twdh
Write data hold time
10
15
-
ns
Ta
H_RDY width
-
-
1250
ns
Trd
Read data valid to H_RDY valid
35
45
-
ns
Tr
H_RDY drive high to release time
5
-
ns
Din
Dout
Tasu Tdsu Tasu Twdh
Tc
Tw
Tw
Trdh
ADDR valid
H_RD
H_D_[15:0]
H_WR
H_RDY
Ta
Trd
Tr
Figure 1. ATAPI Transactions - Read and Write
Содержание Crystal CS98000 Series
Страница 39: ... Notes ...
Страница 40: ......